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Linux下修改主機IP、主機名

   1. 修改網絡配置

  Last login: Sat Sep 6 17:33:02 2014

  [root@centos ~]# vi/etc/sysconfig/network-scripts/ifcfg-eth0

  --修改前

  # Intel Corporation 82540EM GigabitEthernet Controller

  DEVICE=eth0

  BOOTPROTO=dhcp

  ONBOOT=yes

  HWADDR=08:00:27:80:63:5b

  ~

  ~

  --修改後

  # Intel Corporation 82540EM GigabitEthernet Controller

  DEVICE=eth0

  BOOTPROTO=static

  IPADDR=10.53.105.65

  NETMASK=255.255.255.0

  ONBOOT=yes

  HWADDR=08:00:27:80:63:5b

  ~

  [root@centos ~]# service network restart

  Shutting down interface eth0: [ OK ]

  Shutting down loopback interface: [ OK ]

  Bringing up loopback interface: [ OK ]

  Bringing up interface eth0: RTNETLINK answers: Invalid argument

  [ OK ]

  2. 修改hosts配置

  [root@centos ~]# vi /etc/hosts

  # Do not remove the following line, orvarious programs

  # that require network functionality willfail.

  127.0.0.1 centos localhost.localdomainlocalhost

  ::1 localhost6.localdomain6 localhost6

  10.53.105.65 hyldb

  ~

  ~

  3. 修改network配置

  [root@centos ~]# vi /etc/sysconfig/network

  --修改前

  NETWORKING=yes

  NETWORKING_IPV6=yes

  HOSTNAME=centos

  GATEWAY=10.53.105.255

  ~

  ~

  --修改後

  NETWORKING=yes

  NETWORKING_IPV6=no

  HOSTNAME=hyldb

  GATEWAY=10.53.105.255

  ~

  ~

  --重啟系統,使配置生效

  [root@centos ~]# reboot

  Broadcast message from root (pts/3) (SunSep 7 00:00:08 2014):

  The system is going down for reboot NOW!

  重啟後效果如下:

  Last login: Sat Sep 6 23:55:38 2014 from 10.53.105.69

  [root@hyldb ~]# ifconfig

  eth0 Link encap:Ethernet HWaddr08:00:27:80:63:5B

  inet addr:10.53.105.65 Bcast:10.53.105.255 Mask:255.255.255.0

  inet6 addr: fe80::a00:27ff:fe80:635b/64 Scope:Link

  UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

  RX packets:44 errors:0 dropped:0 overruns:0 frame:0

  TX packets:73 errors:0 dropped:0 overruns:0 carrier:0

  collisions:0 txqueuelen:1000

  RX bytes:5283 (5.1 KiB) TXbytes:10654 (10.4 KiB)

  lo Link encap:Local Loopback

  inet addr:127.0.0.1 Mask:255.0.0.0

  inet6 addr: ::1/128 Scope:Host

  UP LOOPBACK RUNNING MTU:16436 Metric:1

  RX packets:5900 errors:0 dropped:0 overruns:0 frame:0

  TX packets:5900 errors:0 dropped:0 overruns:0 carrier:0

  collisions:0 txqueuelen:0

  RX bytes:10634248 (10.1 MiB) TXbytes:10634248 (10.1 MiB)

  [root@hyldb ~]#  hostname

  hyldb

  [root@hyldb ~]#

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